On the distance to Chain A

Details On the distance to Chain A On the distance to Chain A

Dec 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...240..487l&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 240, no. 2, Dec. 1990, p. 487-496.

Astronomy and Astrophysics

Astrophysics

27

A Stars, F Stars, Interstellar Matter, Milky Way Galaxy, Molecular Clouds, Stellar Spectra, Absorption Spectra, Emission Spectra, Hydrogen Clouds, Metallicity, Stellar Spectrophotometry

Scientific paper

High dispersion spectroscopic observations of nine A-type stars and one F-type star in the Na I D and/or Ca II H and K lines are presented. Most stars lie toward the high-velocity complex Chain A. These spectra are compared with 21-cm H I emission profiles of the same lines of sight. No optical high- or intermediate-velocity components are detected. A lower limit for the height of Chain A above the galactic plane of z about 200 pc can be deduced. The detections of interstellar Ca II in the spectra of halo RR Lyrae stars in the literature are shown to be in doubt.

Affiliated with

Also associated with

No associations

Rating

On the distance to Chain A does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with On the distance to Chain A, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the distance to Chain A will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1628130